HDMI PLL is a block common to DSS in OMAP4, OMAP5 and DRA7x. Move the existing PLL functions from ti_hdmi_4xxx_ip.c and hdmi.c to a separate file. These funcs are called directly from the hdmi driver rather than hdmi_ip_ops function pointer calls.
Add the PLL library function declarations to ti_hdmi.h. These will be shared amongst the omap4/5 hdmi platform drivers. Remove the PLL function pointer ops from the ti_hdmi_ip_ops struct. These will be shared amongst the omap4/5 hdmi platform drivers and other libraries. Signed-off-by: Archit Taneja <[email protected]> --- drivers/video/omap2/dss/Makefile | 2 +- drivers/video/omap2/dss/dss_features.c | 3 - drivers/video/omap2/dss/hdmi.c | 65 ++------ drivers/video/omap2/dss/hdmi_pll.c | 243 ++++++++++++++++++++++++++++++ drivers/video/omap2/dss/ti_hdmi.h | 25 +-- drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 132 ---------------- 6 files changed, 267 insertions(+), 203 deletions(-) create mode 100644 drivers/video/omap2/dss/hdmi_pll.c diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile index 56ce6bd..5ea65d3 100644 --- a/drivers/video/omap2/dss/Makefile +++ b/drivers/video/omap2/dss/Makefile @@ -10,5 +10,5 @@ omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o omapdss-$(CONFIG_OMAP2_DSS_SDI) += sdi.o omapdss-$(CONFIG_OMAP2_DSS_DSI) += dsi.o -omapdss-$(CONFIG_OMAP4_DSS_HDMI) += hdmi.o hdmi_wp.o ti_hdmi_4xxx_ip.o +omapdss-$(CONFIG_OMAP4_DSS_HDMI) += hdmi.o hdmi_wp.o hdmi_pll.o ti_hdmi_4xxx_ip.o ccflags-$(CONFIG_OMAP2_DSS_DEBUG) += -DDEBUG diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c index db359e8..9ee92e9 100644 --- a/drivers/video/omap2/dss/dss_features.c +++ b/drivers/video/omap2/dss/dss_features.c @@ -797,10 +797,7 @@ static const struct ti_hdmi_ip_ops omap4_hdmi_functions = { .phy_enable = ti_hdmi_4xxx_phy_enable, .phy_disable = ti_hdmi_4xxx_phy_disable, .read_edid = ti_hdmi_4xxx_read_edid, - .pll_enable = ti_hdmi_4xxx_pll_enable, - .pll_disable = ti_hdmi_4xxx_pll_disable, .dump_core = ti_hdmi_4xxx_core_dump, - .dump_pll = ti_hdmi_4xxx_pll_dump, .dump_phy = ti_hdmi_4xxx_phy_dump, #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO) .audio_start = ti_hdmi_4xxx_audio_start, diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c index f2475fc..f6a2eba 100644 --- a/drivers/video/omap2/dss/hdmi.c +++ b/drivers/video/omap2/dss/hdmi.c @@ -42,7 +42,6 @@ #define HDMI_CORE_SYS 0x400 #define HDMI_CORE_AV 0x900 -#define HDMI_PLLCTRL 0x200 #define HDMI_PHY 0x300 /* HDMI EDID Length move this */ @@ -53,9 +52,6 @@ #define EDID_SIZE_BLOCK0_TIMING_DESCRIPTOR 4 #define EDID_SIZE_BLOCK1_TIMING_DESCRIPTOR 4 -#define HDMI_DEFAULT_REGN 16 -#define HDMI_DEFAULT_REGM2 1 - static struct { struct mutex lock; struct platform_device *pdev; @@ -428,52 +424,6 @@ end: return cm; } -static void hdmi_compute_pll(struct omap_dss_device *dssdev, int phy, - struct hdmi_pll_info *pi) -{ - unsigned long clkin, refclk; - u32 mf; - - clkin = clk_get_rate(hdmi.sys_clk) / 10000; - /* - * Input clock is predivided by N + 1 - * out put of which is reference clk - */ - - pi->regn = HDMI_DEFAULT_REGN; - - refclk = clkin / pi->regn; - - pi->regm2 = HDMI_DEFAULT_REGM2; - - /* - * multiplier is pixel_clk/ref_clk - * Multiplying by 100 to avoid fractional part removal - */ - pi->regm = phy * pi->regm2 / refclk; - - /* - * fractional multiplier is remainder of the difference between - * multiplier and actual phy(required pixel clock thus should be - * multiplied by 2^18(262144) divided by the reference clock - */ - mf = (phy - pi->regm / pi->regm2 * refclk) * 262144; - pi->regmf = pi->regm2 * mf / refclk; - - /* - * Dcofreq should be set to 1 if required pixel clock - * is greater than 1000MHz - */ - pi->dcofreq = phy > 1000 * 100; - pi->regsd = ((pi->regm * clkin / 10) / (pi->regn * 250) + 5) / 10; - - /* Set the reference clock to sysclk reference */ - pi->refsel = HDMI_REFSEL_SYSCLK; - - DSSDBG("M = %d Mf = %d\n", pi->regm, pi->regmf); - DSSDBG("range = %d sd = %d\n", pi->dcofreq, pi->regsd); -} - static int hdmi_power_on_core(struct omap_dss_device *dssdev) { int r; @@ -526,12 +476,12 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev) phy = p->pixel_clock; - hdmi_compute_pll(dssdev, phy, &hdmi.ip_data.pll_data); + hdmi_pll_compute(&hdmi.ip_data.pll, clk_get_rate(hdmi.sys_clk), phy); hdmi_wp_video_stop(&hdmi.ip_data.wp); /* config the PLL and PHY hdmi_set_pll_pwrfirst */ - r = hdmi.ip_data.ops->pll_enable(&hdmi.ip_data); + r = hdmi_pll_enable(&hdmi.ip_data.pll, &hdmi.ip_data.wp); if (r) { DSSDBG("Failed to lock PLL\n"); goto err_pll_enable; @@ -566,7 +516,7 @@ err_mgr_enable: err_vid_enable: hdmi.ip_data.ops->phy_disable(&hdmi.ip_data); err_phy_enable: - hdmi.ip_data.ops->pll_disable(&hdmi.ip_data); + hdmi_pll_disable(&hdmi.ip_data.pll, &hdmi.ip_data.wp); err_pll_enable: hdmi_power_off_core(dssdev); return -EIO; @@ -580,7 +530,7 @@ static void hdmi_power_off_full(struct omap_dss_device *dssdev) hdmi_wp_video_stop(&hdmi.ip_data.wp); hdmi.ip_data.ops->phy_disable(&hdmi.ip_data); - hdmi.ip_data.ops->pll_disable(&hdmi.ip_data); + hdmi_pll_disable(&hdmi.ip_data.pll, &hdmi.ip_data.wp); hdmi_power_off_core(dssdev); } @@ -642,7 +592,7 @@ static void hdmi_dump_regs(struct seq_file *s) } hdmi_wp_dump(&hdmi.ip_data.wp, s); - hdmi.ip_data.ops->dump_pll(&hdmi.ip_data, s); + hdmi_pll_dump(&hdmi.ip_data.pll, s); hdmi.ip_data.ops->dump_phy(&hdmi.ip_data, s); hdmi.ip_data.ops->dump_core(&hdmi.ip_data, s); @@ -1095,6 +1045,10 @@ static int omapdss_hdmihw_probe(struct platform_device *pdev) if (r) return r; + r = hdmi_pll_init(pdev, &hdmi.ip_data.pll); + if (r) + return r; + hdmi.ip_data.irq = platform_get_irq(pdev, 0); if (hdmi.ip_data.irq < 0) { DSSERR("platform_get_irq failed\n"); @@ -1111,7 +1065,6 @@ static int omapdss_hdmihw_probe(struct platform_device *pdev) hdmi.ip_data.core_sys_offset = HDMI_CORE_SYS; hdmi.ip_data.core_av_offset = HDMI_CORE_AV; - hdmi.ip_data.pll_offset = HDMI_PLLCTRL; hdmi.ip_data.phy_offset = HDMI_PHY; hdmi_init_output(pdev); diff --git a/drivers/video/omap2/dss/hdmi_pll.c b/drivers/video/omap2/dss/hdmi_pll.c new file mode 100644 index 0000000..d53b8e2 --- /dev/null +++ b/drivers/video/omap2/dss/hdmi_pll.c @@ -0,0 +1,243 @@ +/* + * HDMI PLL + * + * Copyright (C) 2013 Texas Instruments Incorporated + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/platform_device.h> +#include <video/omapdss.h> + +#include "dss.h" +#include "ti_hdmi.h" +#include "ti_hdmi_4xxx_ip.h" + +#define HDMI_DEFAULT_REGN 16 +#define HDMI_DEFAULT_REGM2 1 + +static inline void hdmi_write_reg(void __iomem *base_addr, const u16 idx, + u32 val) +{ + __raw_writel(val, base_addr + idx); +} + +static inline u32 hdmi_read_reg(void __iomem *base_addr, const u16 idx) +{ + return __raw_readl(base_addr + idx); +} + +#define REG_FLD_MOD(base, idx, val, start, end) \ + hdmi_write_reg(base, idx, FLD_MOD(hdmi_read_reg(base, idx),\ + val, start, end)) +#define REG_GET(base, idx, start, end) \ + FLD_GET(hdmi_read_reg(base, idx), start, end) + +static inline int hdmi_wait_for_bit_change(void __iomem *base_addr, + const u16 idx, int b2, int b1, u32 val) +{ + u32 t = 0; + while (val != REG_GET(base_addr, idx, b2, b1)) { + udelay(1); + if (t++ > 10000) + return !val; + } + return val; +} + +void hdmi_pll_dump(struct hdmi_pll_data *pll, struct seq_file *s) +{ +#define DUMPPLL(r) seq_printf(s, "%-35s %08x\n", #r,\ + hdmi_read_reg(pll->base, r)) + + DUMPPLL(PLLCTRL_PLL_CONTROL); + DUMPPLL(PLLCTRL_PLL_STATUS); + DUMPPLL(PLLCTRL_PLL_GO); + DUMPPLL(PLLCTRL_CFG1); + DUMPPLL(PLLCTRL_CFG2); + DUMPPLL(PLLCTRL_CFG3); + DUMPPLL(PLLCTRL_SSC_CFG1); + DUMPPLL(PLLCTRL_SSC_CFG2); + DUMPPLL(PLLCTRL_CFG4); +} + +void hdmi_pll_compute(struct hdmi_pll_data *pll, unsigned long clkin, int phy) +{ + struct hdmi_pll_info *pi = &pll->info; + unsigned long refclk; + u32 mf; + + /* use our funky units */ + clkin /= 10000; + + /* + * Input clock is predivided by N + 1 + * out put of which is reference clk + */ + + pi->regn = HDMI_DEFAULT_REGN; + + refclk = clkin / pi->regn; + + pi->regm2 = HDMI_DEFAULT_REGM2; + + /* + * multiplier is pixel_clk/ref_clk + * Multiplying by 100 to avoid fractional part removal + */ + pi->regm = phy * pi->regm2 / refclk; + + /* + * fractional multiplier is remainder of the difference between + * multiplier and actual phy(required pixel clock thus should be + * multiplied by 2^18(262144) divided by the reference clock + */ + mf = (phy - pi->regm / pi->regm2 * refclk) * 262144; + pi->regmf = pi->regm2 * mf / refclk; + + /* + * Dcofreq should be set to 1 if required pixel clock + * is greater than 1000MHz + */ + pi->dcofreq = phy > 1000 * 100; + pi->regsd = ((pi->regm * clkin / 10) / (pi->regn * 250) + 5) / 10; + + /* Set the reference clock to sysclk reference */ + pi->refsel = HDMI_REFSEL_SYSCLK; + + DSSDBG("M = %d Mf = %d\n", pi->regm, pi->regmf); + DSSDBG("range = %d sd = %d\n", pi->dcofreq, pi->regsd); +} + + +static int hdmi_pll_config(struct hdmi_pll_data *pll) +{ + u32 r; + struct hdmi_pll_info *fmt = &pll->info; + + /* PLL start always use manual mode */ + REG_FLD_MOD(pll->base, PLLCTRL_PLL_CONTROL, 0x0, 0, 0); + + r = hdmi_read_reg(pll->base, PLLCTRL_CFG1); + r = FLD_MOD(r, fmt->regm, 20, 9); /* CFG1_PLL_REGM */ + r = FLD_MOD(r, fmt->regn - 1, 8, 1); /* CFG1_PLL_REGN */ + hdmi_write_reg(pll->base, PLLCTRL_CFG1, r); + + r = hdmi_read_reg(pll->base, PLLCTRL_CFG2); + + r = FLD_MOD(r, 0x0, 12, 12); /* PLL_HIGHFREQ divide by 2 */ + r = FLD_MOD(r, 0x1, 13, 13); /* PLL_REFEN */ + r = FLD_MOD(r, 0x0, 14, 14); /* PHY_CLKINEN de-assert during locking */ + r = FLD_MOD(r, fmt->refsel, 22, 21); /* REFSEL */ + + if (fmt->dcofreq) { + /* divider programming for frequency beyond 1000Mhz */ + REG_FLD_MOD(pll->base, PLLCTRL_CFG3, fmt->regsd, 17, 10); + r = FLD_MOD(r, 0x4, 3, 1); /* 1000MHz and 2000MHz */ + } else { + r = FLD_MOD(r, 0x2, 3, 1); /* 500MHz and 1000MHz */ + } + + hdmi_write_reg(pll->base, PLLCTRL_CFG2, r); + + r = hdmi_read_reg(pll->base, PLLCTRL_CFG4); + r = FLD_MOD(r, fmt->regm2, 24, 18); + r = FLD_MOD(r, fmt->regmf, 17, 0); + hdmi_write_reg(pll->base, PLLCTRL_CFG4, r); + + /* go now */ + REG_FLD_MOD(pll->base, PLLCTRL_PLL_GO, 0x1, 0, 0); + + /* wait for bit change */ + if (hdmi_wait_for_bit_change(pll->base, PLLCTRL_PLL_GO, + 0, 0, 1) != 1) { + pr_err("PLL GO bit not set\n"); + return -ETIMEDOUT; + } + + /* Wait till the lock bit is set in PLL status */ + if (hdmi_wait_for_bit_change(pll->base, + PLLCTRL_PLL_STATUS, 1, 1, 1) != 1) { + pr_err("cannot lock PLL\n"); + pr_err("CFG1 0x%x\n", + hdmi_read_reg(pll->base, PLLCTRL_CFG1)); + pr_err("CFG2 0x%x\n", + hdmi_read_reg(pll->base, PLLCTRL_CFG2)); + pr_err("CFG4 0x%x\n", + hdmi_read_reg(pll->base, PLLCTRL_CFG4)); + return -ETIMEDOUT; + } + + pr_debug("PLL locked!\n"); + + return 0; +} + +static int hdmi_pll_reset(struct hdmi_pll_data *pll) +{ + /* SYSRESET controlled by power FSM */ + REG_FLD_MOD(pll->base, PLLCTRL_PLL_CONTROL, 0x0, 3, 3); + + /* READ 0x0 reset is in progress */ + if (hdmi_wait_for_bit_change(pll->base, PLLCTRL_PLL_STATUS, 0, 0, 1) + != 1) { + pr_err("Failed to sysreset PLL\n"); + return -ETIMEDOUT; + } + + return 0; +} + +int hdmi_pll_enable(struct hdmi_pll_data *pll, struct hdmi_wp_data *wp) +{ + u16 r = 0; + + r = hdmi_wp_set_pll_pwr(wp, HDMI_PLLPWRCMD_ALLOFF); + if (r) + return r; + + r = hdmi_wp_set_pll_pwr(wp, HDMI_PLLPWRCMD_BOTHON_ALLCLKS); + if (r) + return r; + + r = hdmi_pll_reset(pll); + if (r) + return r; + + r = hdmi_pll_config(pll); + if (r) + return r; + + return 0; +} + +void hdmi_pll_disable(struct hdmi_pll_data *pll, struct hdmi_wp_data *wp) +{ + hdmi_wp_set_pll_pwr(wp, HDMI_PLLPWRCMD_ALLOFF); +} + +int hdmi_pll_init(struct platform_device *pdev, struct hdmi_pll_data *pll) +{ + struct resource *res; + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hdmi_pllctrl"); + if (!res) { + DSSERR("can't get PLL CTRL IORESOURCE_MEM HDMI\n"); + return -EINVAL; + } + + pll->base = devm_request_and_ioremap(&pdev->dev, res); + if (!pll->base) { + DSSERR("can't ioremap PLL ctrl\n"); + return -ENOMEM; + } + + return 0; +} diff --git a/drivers/video/omap2/dss/ti_hdmi.h b/drivers/video/omap2/dss/ti_hdmi.h index d16f28d..62a83c7 100644 --- a/drivers/video/omap2/dss/ti_hdmi.h +++ b/drivers/video/omap2/dss/ti_hdmi.h @@ -155,14 +155,8 @@ struct ti_hdmi_ip_ops { int (*read_edid)(struct hdmi_ip_data *ip_data, u8 *edid, int len); - int (*pll_enable)(struct hdmi_ip_data *ip_data); - - void (*pll_disable)(struct hdmi_ip_data *ip_data); - void (*dump_core)(struct hdmi_ip_data *ip_data, struct seq_file *s); - void (*dump_pll)(struct hdmi_ip_data *ip_data, struct seq_file *s); - void (*dump_phy)(struct hdmi_ip_data *ip_data, struct seq_file *s); #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO) @@ -223,17 +217,22 @@ struct hdmi_wp_data { void __iomem *base; }; +struct hdmi_pll_data { + void __iomem *base; + + struct hdmi_pll_info info; +}; + struct hdmi_ip_data { struct hdmi_wp_data wp; + struct hdmi_pll_data pll; unsigned long core_sys_offset; unsigned long core_av_offset; - unsigned long pll_offset; unsigned long phy_offset; int irq; const struct ti_hdmi_ip_ops *ops; struct hdmi_config cfg; - struct hdmi_pll_info pll_data; struct hdmi_core_infoframe_avi avi_cfg; /* ti_hdmi_4xxx_ip private data. These should be in a separate struct */ @@ -260,13 +259,17 @@ void hdmi_wp_init_vid_fmt_timings(struct hdmi_video_format *video_fmt, struct omap_video_timings *timings, struct hdmi_config *param); int hdmi_wp_init(struct platform_device *pdev, struct hdmi_wp_data *wp); +/* HDMI PLL funcs */ +int hdmi_pll_enable(struct hdmi_pll_data *pll, struct hdmi_wp_data *wp); +void hdmi_pll_disable(struct hdmi_pll_data *pll, struct hdmi_wp_data *wp); +void hdmi_pll_dump(struct hdmi_pll_data *pll, struct seq_file *s); +void hdmi_pll_compute(struct hdmi_pll_data *pll, unsigned long clkin, int phy); +int hdmi_pll_init(struct platform_device *pdev, struct hdmi_pll_data *pll); + int ti_hdmi_4xxx_phy_enable(struct hdmi_ip_data *ip_data); void ti_hdmi_4xxx_phy_disable(struct hdmi_ip_data *ip_data); int ti_hdmi_4xxx_read_edid(struct hdmi_ip_data *ip_data, u8 *edid, int len); -int ti_hdmi_4xxx_pll_enable(struct hdmi_ip_data *ip_data); -void ti_hdmi_4xxx_pll_disable(struct hdmi_ip_data *ip_data); void ti_hdmi_4xxx_basic_configure(struct hdmi_ip_data *ip_data); -void ti_hdmi_4xxx_pll_dump(struct hdmi_ip_data *ip_data, struct seq_file *s); void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s); void ti_hdmi_4xxx_phy_dump(struct hdmi_ip_data *ip_data, struct seq_file *s); #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO) diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c index d4b8883..8cfb54b 100644 --- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c +++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c @@ -75,11 +75,6 @@ static inline void __iomem *hdmi_phy_base(struct hdmi_ip_data *ip_data) return ip_data->wp.base + ip_data->phy_offset; } -static inline void __iomem *hdmi_pll_base(struct hdmi_ip_data *ip_data) -{ - return ip_data->wp.base + ip_data->pll_offset; -} - static inline void __iomem *hdmi_av_base(struct hdmi_ip_data *ip_data) { return ip_data->wp.base + ip_data->core_av_offset; @@ -90,117 +85,6 @@ static inline void __iomem *hdmi_core_sys_base(struct hdmi_ip_data *ip_data) return ip_data->wp.base + ip_data->core_sys_offset; } - -static int hdmi_pll_init(struct hdmi_ip_data *ip_data) -{ - u32 r; - void __iomem *pll_base = hdmi_pll_base(ip_data); - struct hdmi_pll_info *fmt = &ip_data->pll_data; - - /* PLL start always use manual mode */ - REG_FLD_MOD(pll_base, PLLCTRL_PLL_CONTROL, 0x0, 0, 0); - - r = hdmi_read_reg(pll_base, PLLCTRL_CFG1); - r = FLD_MOD(r, fmt->regm, 20, 9); /* CFG1_PLL_REGM */ - r = FLD_MOD(r, fmt->regn - 1, 8, 1); /* CFG1_PLL_REGN */ - - hdmi_write_reg(pll_base, PLLCTRL_CFG1, r); - - r = hdmi_read_reg(pll_base, PLLCTRL_CFG2); - - r = FLD_MOD(r, 0x0, 12, 12); /* PLL_HIGHFREQ divide by 2 */ - r = FLD_MOD(r, 0x1, 13, 13); /* PLL_REFEN */ - r = FLD_MOD(r, 0x0, 14, 14); /* PHY_CLKINEN de-assert during locking */ - r = FLD_MOD(r, fmt->refsel, 22, 21); /* REFSEL */ - - if (fmt->dcofreq) { - /* divider programming for frequency beyond 1000Mhz */ - REG_FLD_MOD(pll_base, PLLCTRL_CFG3, fmt->regsd, 17, 10); - r = FLD_MOD(r, 0x4, 3, 1); /* 1000MHz and 2000MHz */ - } else { - r = FLD_MOD(r, 0x2, 3, 1); /* 500MHz and 1000MHz */ - } - - hdmi_write_reg(pll_base, PLLCTRL_CFG2, r); - - r = hdmi_read_reg(pll_base, PLLCTRL_CFG4); - r = FLD_MOD(r, fmt->regm2, 24, 18); - r = FLD_MOD(r, fmt->regmf, 17, 0); - - hdmi_write_reg(pll_base, PLLCTRL_CFG4, r); - - /* go now */ - REG_FLD_MOD(pll_base, PLLCTRL_PLL_GO, 0x1, 0, 0); - - /* wait for bit change */ - if (hdmi_wait_for_bit_change(pll_base, PLLCTRL_PLL_GO, - 0, 0, 1) != 1) { - pr_err("PLL GO bit not set\n"); - return -ETIMEDOUT; - } - - /* Wait till the lock bit is set in PLL status */ - if (hdmi_wait_for_bit_change(pll_base, - PLLCTRL_PLL_STATUS, 1, 1, 1) != 1) { - pr_err("cannot lock PLL\n"); - pr_err("CFG1 0x%x\n", - hdmi_read_reg(pll_base, PLLCTRL_CFG1)); - pr_err("CFG2 0x%x\n", - hdmi_read_reg(pll_base, PLLCTRL_CFG2)); - pr_err("CFG4 0x%x\n", - hdmi_read_reg(pll_base, PLLCTRL_CFG4)); - return -ETIMEDOUT; - } - - pr_debug("PLL locked!\n"); - - return 0; -} - - -static int hdmi_pll_reset(struct hdmi_ip_data *ip_data) -{ - /* SYSRESET controlled by power FSM */ - REG_FLD_MOD(hdmi_pll_base(ip_data), PLLCTRL_PLL_CONTROL, 0x0, 3, 3); - - /* READ 0x0 reset is in progress */ - if (hdmi_wait_for_bit_change(hdmi_pll_base(ip_data), - PLLCTRL_PLL_STATUS, 0, 0, 1) != 1) { - pr_err("Failed to sysreset PLL\n"); - return -ETIMEDOUT; - } - - return 0; -} - -int ti_hdmi_4xxx_pll_enable(struct hdmi_ip_data *ip_data) -{ - u16 r = 0; - - r = hdmi_wp_set_pll_pwr(&ip_data->wp, HDMI_PLLPWRCMD_ALLOFF); - if (r) - return r; - - r = hdmi_wp_set_pll_pwr(&ip_data->wp, HDMI_PLLPWRCMD_BOTHON_ALLCLKS); - if (r) - return r; - - r = hdmi_pll_reset(ip_data); - if (r) - return r; - - r = hdmi_pll_init(ip_data); - if (r) - return r; - - return 0; -} - -void ti_hdmi_4xxx_pll_disable(struct hdmi_ip_data *ip_data) -{ - hdmi_wp_set_pll_pwr(&ip_data->wp, HDMI_PLLPWRCMD_ALLOFF); -} - static irqreturn_t hdmi_irq_handler(int irq, void *data) { struct hdmi_ip_data *ip_data = data; @@ -717,22 +601,6 @@ void ti_hdmi_4xxx_basic_configure(struct hdmi_ip_data *ip_data) hdmi_core_av_packet_config(ip_data, repeat_cfg); } -void ti_hdmi_4xxx_pll_dump(struct hdmi_ip_data *ip_data, struct seq_file *s) -{ -#define DUMPPLL(r) seq_printf(s, "%-35s %08x\n", #r,\ - hdmi_read_reg(hdmi_pll_base(ip_data), r)) - - DUMPPLL(PLLCTRL_PLL_CONTROL); - DUMPPLL(PLLCTRL_PLL_STATUS); - DUMPPLL(PLLCTRL_PLL_GO); - DUMPPLL(PLLCTRL_CFG1); - DUMPPLL(PLLCTRL_CFG2); - DUMPPLL(PLLCTRL_CFG3); - DUMPPLL(PLLCTRL_SSC_CFG1); - DUMPPLL(PLLCTRL_SSC_CFG2); - DUMPPLL(PLLCTRL_CFG4); -} - void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s) { int i; -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
